Chemistry of Fireworks The sights and sounds of each explosion are the result of several chemical reactions – oxidations and reductions – taking place within the firework as it ascends into the sky. Oxidizers produce the oxygen gas required to burn the mixture of reducing agents and to excite the atoms of the light-emitting compounds. Various oxidizers are used in both the black powder and the stars. The most commonly used oxidizers are nitrates‚ chlorates‚ and perchlorates
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Portfolio Entry #2 Introduction During his trial‚ Socrates stated that ‘The unexamined life is not worth living.’ True to his words‚ without reflection‚ we would never know where we erred and get back on the right track. The opportunity to be able to complete this ID Unit has given me a chance to learn more about working in a team and more importantly‚ about myself. Positives Working in my ID Unit team has many positives. First‚ we learnt how to cooperate well as a team as we paid attention
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A firework is an incendiary device or material that can be used forsignalling orentertainment. There are chemicals located in the nose ofthe rocket that explode‚ producing the colours seen. The art of fireworks‚ first originated in ancient China‚ with thefirst explosive being made from a mixture of black powder during theSung dynasty. It is believed that the explosive mixture was created bya combination of sulfur‚ saltpeter and charcoal. The Chinese foundthat the combination of these ingredients
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A firework is an incendiary device or material that can be used for signalling or entertainment. There are chemicals in the top of the firework that explode‚ which makes the colours seen. Fireworks‚ first originated in ancient China‚ with the first explosive being created from a mixture of black powder during the Sung dynasty. The firework was created by a combination of sulfur‚ saltpeter and charcoal. The Chinese found that the combination of these ingredients was very flammable and would blow up
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AP English: Period 6 2/08/13 Why!!! In this chapter the monster after being rejected by the old man De Lacy and his son Felix; the monster swear revenge on all human beings and swears to find his master (Victor). During this journey the monster tries to only travel in night and goes through the woods. He know where he is going but does not know where he is and what cities he will be going through. The monster in his travels find a young girl who is playing hide and seek and he see her play and
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Shopping Cart FIREWORKS UNIVERSITY : HISTORY OF FIREWORKS Fireworks originated in China some 2‚000 years ago. The most prevalent legend has it that fireworks were discovered or invented by accident by a Chinese cook working in a field kitchen who happened to mix charcoal‚ sulphur and saltpeter (all commonly found in the kitchen in those days). The mixture burned and when compressed in an enclosure (a bamboo tube)‚ the mixture exploded. Some sources say that the discovery of fireworks occurred about
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Principles of marketing Welcome to Principles of marketing‚ made up of many business majors. Marketing as defined as "the total of activities involved in the transfer of goods from the producer or seller to the consumer or buyer‚ including advertising‚ shipping‚ storing‚ and selling." An alternate definition is paraphrased from memory of an introductory business text is: Marketing is all activities conducted to prepare for sales. Sales is all activities required to close the deal. Shipping and
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American will need to consider what its competitors are doing as well as the responses from the general community. Lastly‚ shareholders’ point of view should be taken into consideration as they provide financial support for Anglo American’s success. 2. What are the pros and cons of Anglo American’s adoption of an aggressive strategy in combating HIV/AIDS among its South African workforce? What recommendations would you give the company concerning its HIV/AIDS policy? Pros: Gain trust from the community
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Cookies Portfolio The main goal of the Cookies unit was to solve the Unit Problem. The unit problem introduced us to the Woos‚ the owners of a cookie bakery. The Woos want to find the most profitable combination of plain and iced cookies to bake and sell in their store. We were given several constraints for this problem. According to the Woo’s recipes‚ a dozen normal cookies requires one pound of cookie dough‚ and a dozen iced cookies requires .7 pounds of cookie dough. The Woo family only
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Fireworks and What Makes Them Go Sparks! Colors! Things that go BOOM! Chemistry doesn’t get much better than this. Ever notice how minutes drag on for hours when you’re waiting for a fireworks show to begin? Everyone’s thinking the same thing: The sky is dark enough the hot dogs are all eaten…come on when are they going to start? Then the first rockets streak into the sky…Ooh! Aah! Yes‚ it was worth the wait. The birthplace of fireworks is generally recognized as China.
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